Mailman 3 September 2018 - Python-checkins

bpo-34850: Replace is with == in idlelib.iomenu (GH-9649)
by Miss Islington (bot) 30 Sep '18

30 Sep '18

https://github.com/python/cpython/commit/cb0bec37dd8279555bc01fa03a259eaf7d… commit: cb0bec37dd8279555bc01fa03a259eaf7dbb6d5d branch: 3.6 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: GitHub <noreply(a)github.com> date: 2018-09-30T14:40:56-07:00 summary: bpo-34850: Replace is with == in idlelib.iomenu (GH-9649) Patch by Serhiy Storchaka (in PR GH-9642). (cherry picked from commit 5fa247d60d4f3f2b8c8ae8cb57363aca234344c2) Co-authored-by: Terry Jan Reedy <tjreedy(a)udel.edu> files: M Lib/idlelib/iomenu.py diff --git a/Lib/idlelib/iomenu.py b/Lib/idlelib/iomenu.py index 63d107dd9003..fcd8dcc1393d 100644 --- a/Lib/idlelib/iomenu.py +++ b/Lib/idlelib/iomenu.py @@ -40,7 +40,7 @@ # resulting codeset may be unknown to Python. We ignore all # these problems, falling back to ASCII locale_encoding = locale.nl_langinfo(locale.CODESET) - if locale_encoding is None or locale_encoding is '': + if locale_encoding is None or locale_encoding == '': # situation occurs on Mac OS X locale_encoding = 'ascii' codecs.lookup(locale_encoding) @@ -50,7 +50,7 @@ # bugs that can cause ValueError. try: locale_encoding = locale.getdefaultlocale()[1] - if locale_encoding is None or locale_encoding is '': + if locale_encoding is None or locale_encoding == '': # situation occurs on Mac OS X locale_encoding = 'ascii' codecs.lookup(locale_encoding)

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bpo-34850: Replace is with == in idlelib.iomenu (GH-9649)
by Miss Islington (bot) 30 Sep '18

30 Sep '18

https://github.com/python/cpython/commit/214c0b3d153c4bad14086888b9de0826a7… commit: 214c0b3d153c4bad14086888b9de0826a7abc083 branch: 3.7 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: GitHub <noreply(a)github.com> date: 2018-09-30T14:35:53-07:00 summary: bpo-34850: Replace is with == in idlelib.iomenu (GH-9649) Patch by Serhiy Storchaka (in PR GH-9642). (cherry picked from commit 5fa247d60d4f3f2b8c8ae8cb57363aca234344c2) Co-authored-by: Terry Jan Reedy <tjreedy(a)udel.edu> files: M Lib/idlelib/iomenu.py diff --git a/Lib/idlelib/iomenu.py b/Lib/idlelib/iomenu.py index 63d107dd9003..fcd8dcc1393d 100644 --- a/Lib/idlelib/iomenu.py +++ b/Lib/idlelib/iomenu.py @@ -40,7 +40,7 @@ # resulting codeset may be unknown to Python. We ignore all # these problems, falling back to ASCII locale_encoding = locale.nl_langinfo(locale.CODESET) - if locale_encoding is None or locale_encoding is '': + if locale_encoding is None or locale_encoding == '': # situation occurs on Mac OS X locale_encoding = 'ascii' codecs.lookup(locale_encoding) @@ -50,7 +50,7 @@ # bugs that can cause ValueError. try: locale_encoding = locale.getdefaultlocale()[1] - if locale_encoding is None or locale_encoding is '': + if locale_encoding is None or locale_encoding == '': # situation occurs on Mac OS X locale_encoding = 'ascii' codecs.lookup(locale_encoding)

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bpo-34850: Replace is with == in idlelib.iomenu (GH-9649)
by Terry Jan Reedy 30 Sep '18

30 Sep '18

https://github.com/python/cpython/commit/5fa247d60d4f3f2b8c8ae8cb57363aca23… commit: 5fa247d60d4f3f2b8c8ae8cb57363aca234344c2 branch: master author: Terry Jan Reedy <tjreedy(a)udel.edu> committer: GitHub <noreply(a)github.com> date: 2018-09-30T17:17:17-04:00 summary: bpo-34850: Replace is with == in idlelib.iomenu (GH-9649) Patch by Serhiy Storchaka (in PR #9642). files: M Lib/idlelib/iomenu.py diff --git a/Lib/idlelib/iomenu.py b/Lib/idlelib/iomenu.py index 63d107dd9003..fcd8dcc1393d 100644 --- a/Lib/idlelib/iomenu.py +++ b/Lib/idlelib/iomenu.py @@ -40,7 +40,7 @@ # resulting codeset may be unknown to Python. We ignore all # these problems, falling back to ASCII locale_encoding = locale.nl_langinfo(locale.CODESET) - if locale_encoding is None or locale_encoding is '': + if locale_encoding is None or locale_encoding == '': # situation occurs on Mac OS X locale_encoding = 'ascii' codecs.lookup(locale_encoding) @@ -50,7 +50,7 @@ # bugs that can cause ValueError. try: locale_encoding = locale.getdefaultlocale()[1] - if locale_encoding is None or locale_encoding is '': + if locale_encoding is None or locale_encoding == '': # situation occurs on Mac OS X locale_encoding = 'ascii' codecs.lookup(locale_encoding)

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bpo-34854: Fix compiling string annotations containing lambdas. (GH-9645)
by Miss Islington (bot) 30 Sep '18

30 Sep '18

https://github.com/python/cpython/commit/0f161b307969f86b4f8f31baf38f53f546… commit: 0f161b307969f86b4f8f31baf38f53f5462a9874 branch: 3.7 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: GitHub <noreply(a)github.com> date: 2018-09-30T11:19:15-07:00 summary: bpo-34854: Fix compiling string annotations containing lambdas. (GH-9645) * Compiling a string annotation containing a lambda with keyword-only argument without default value caused a crash. * Remove the final "*" (it is incorrect syntax) in the representation of lambda without *args and keyword-only arguments when compile from AST. * Improve the representation of lambda without arguments. (cherry picked from commit 2a2940e5c3e6d92f4fac5e9d361a1e224bb2f12e) Co-authored-by: Serhiy Storchaka <storchaka(a)gmail.com> files: A Misc/NEWS.d/next/Core and Builtins/2018-09-30-19-27-13.bpo-34854.6TKTcB.rst M Lib/test/test_future.py M Python/ast_unparse.c diff --git a/Lib/test/test_future.py b/Lib/test/test_future.py index 61cd63479d85..70da0cf57040 100644 --- a/Lib/test/test_future.py +++ b/Lib/test/test_future.py @@ -178,11 +178,12 @@ def test_annotations(self): eq('-1') eq('~int and not v1 ^ 123 + v2 | True') eq('a + (not b)') + eq('lambda: None') eq('lambda arg: None') eq('lambda a=True: a') eq('lambda a, b, c=True: a') eq("lambda a, b, c=True, *, d=1 << v2, e='str': a") - eq("lambda a, b, c=True, *vararg, d=v1 << 2, e='str', **kwargs: a + b") + eq("lambda a, b, c=True, *vararg, d, e='str', **kwargs: a + b") eq('lambda x: lambda y: x + y') eq('1 if True else 2') eq('str or None if int or True else str or bytes or None') diff --git a/Misc/NEWS.d/next/Core and Builtins/2018-09-30-19-27-13.bpo-34854.6TKTcB.rst b/Misc/NEWS.d/next/Core and Builtins/2018-09-30-19-27-13.bpo-34854.6TKTcB.rst new file mode 100644 index 000000000000..4e04e1f157cd --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2018-09-30-19-27-13.bpo-34854.6TKTcB.rst @@ -0,0 +1,2 @@ +Fixed a crash in compiling string annotations containing a lambda with a +keyword-only argument that doesn't have a default value. diff --git a/Python/ast_unparse.c b/Python/ast_unparse.c index 725ce31fe3c0..43453f567b05 100644 --- a/Python/ast_unparse.c +++ b/Python/ast_unparse.c @@ -212,7 +212,7 @@ append_ast_args(_PyUnicodeWriter *writer, arguments_ty args) } /* vararg, or bare '*' if no varargs but keyword-only arguments present */ - if (args->vararg || args->kwonlyargs) { + if (args->vararg || asdl_seq_LEN(args->kwonlyargs)) { APPEND_STR_IF_NOT_FIRST(", "); APPEND_STR("*"); if (args->vararg) { @@ -229,8 +229,11 @@ append_ast_args(_PyUnicodeWriter *writer, arguments_ty args) di = i - arg_count + default_count; if (di >= 0) { - APPEND_STR("="); - APPEND_EXPR((expr_ty)asdl_seq_GET(args->kw_defaults, di), PR_TEST); + expr_ty default_ = (expr_ty)asdl_seq_GET(args->kw_defaults, di); + if (default_) { + APPEND_STR("="); + APPEND_EXPR(default_, PR_TEST); + } } } @@ -248,7 +251,7 @@ static int append_ast_lambda(_PyUnicodeWriter *writer, expr_ty e, int level) { APPEND_STR_IF(level > PR_TEST, "("); - APPEND_STR("lambda "); + APPEND_STR(asdl_seq_LEN(e->v.Lambda.args->args) ? "lambda " : "lambda"); APPEND(args, e->v.Lambda.args); APPEND_STR(": "); APPEND_EXPR(e->v.Lambda.body, PR_TEST);

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bpo-34854: Fix compiling string annotations containing lambdas. (GH-9645)
by Serhiy Storchaka 30 Sep '18

30 Sep '18

https://github.com/python/cpython/commit/2a2940e5c3e6d92f4fac5e9d361a1e224b… commit: 2a2940e5c3e6d92f4fac5e9d361a1e224bb2f12e branch: master author: Serhiy Storchaka <storchaka(a)gmail.com> committer: GitHub <noreply(a)github.com> date: 2018-09-30T21:07:05+03:00 summary: bpo-34854: Fix compiling string annotations containing lambdas. (GH-9645) * Compiling a string annotation containing a lambda with keyword-only argument without default value caused a crash. * Remove the final "*" (it is incorrect syntax) in the representation of lambda without *args and keyword-only arguments when compile from AST. * Improve the representation of lambda without arguments. files: A Misc/NEWS.d/next/Core and Builtins/2018-09-30-19-27-13.bpo-34854.6TKTcB.rst M Lib/test/test_future.py M Python/ast_unparse.c diff --git a/Lib/test/test_future.py b/Lib/test/test_future.py index 904e8a9d5dfc..4f2f9d272e7f 100644 --- a/Lib/test/test_future.py +++ b/Lib/test/test_future.py @@ -178,11 +178,12 @@ def test_annotations(self): eq('-1') eq('~int and not v1 ^ 123 + v2 | True') eq('a + (not b)') + eq('lambda: None') eq('lambda arg: None') eq('lambda a=True: a') eq('lambda a, b, c=True: a') eq("lambda a, b, c=True, *, d=1 << v2, e='str': a") - eq("lambda a, b, c=True, *vararg, d=v1 << 2, e='str', **kwargs: a + b") + eq("lambda a, b, c=True, *vararg, d, e='str', **kwargs: a + b") eq('lambda x: lambda y: x + y') eq('1 if True else 2') eq('str or None if int or True else str or bytes or None') diff --git a/Misc/NEWS.d/next/Core and Builtins/2018-09-30-19-27-13.bpo-34854.6TKTcB.rst b/Misc/NEWS.d/next/Core and Builtins/2018-09-30-19-27-13.bpo-34854.6TKTcB.rst new file mode 100644 index 000000000000..4e04e1f157cd --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2018-09-30-19-27-13.bpo-34854.6TKTcB.rst @@ -0,0 +1,2 @@ +Fixed a crash in compiling string annotations containing a lambda with a +keyword-only argument that doesn't have a default value. diff --git a/Python/ast_unparse.c b/Python/ast_unparse.c index 56ea3c424c5b..916ad5f97f0c 100644 --- a/Python/ast_unparse.c +++ b/Python/ast_unparse.c @@ -212,7 +212,7 @@ append_ast_args(_PyUnicodeWriter *writer, arguments_ty args) } /* vararg, or bare '*' if no varargs but keyword-only arguments present */ - if (args->vararg || args->kwonlyargs) { + if (args->vararg || asdl_seq_LEN(args->kwonlyargs)) { APPEND_STR_IF_NOT_FIRST(", "); APPEND_STR("*"); if (args->vararg) { @@ -229,8 +229,11 @@ append_ast_args(_PyUnicodeWriter *writer, arguments_ty args) di = i - arg_count + default_count; if (di >= 0) { - APPEND_STR("="); - APPEND_EXPR((expr_ty)asdl_seq_GET(args->kw_defaults, di), PR_TEST); + expr_ty default_ = (expr_ty)asdl_seq_GET(args->kw_defaults, di); + if (default_) { + APPEND_STR("="); + APPEND_EXPR(default_, PR_TEST); + } } } @@ -248,7 +251,7 @@ static int append_ast_lambda(_PyUnicodeWriter *writer, expr_ty e, int level) { APPEND_STR_IF(level > PR_TEST, "("); - APPEND_STR("lambda "); + APPEND_STR(asdl_seq_LEN(e->v.Lambda.args->args) ? "lambda " : "lambda"); APPEND(args, e->v.Lambda.args); APPEND_STR(": "); APPEND_EXPR(e->v.Lambda.body, PR_TEST);

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Daily reference leaks (4243df51fe43): sum=8
by solipsis＠pitrou.net 30 Sep '18

30 Sep '18

results for 4243df51fe43 on branch "default" -------------------------------------------- test_asyncio leaked [0, 3, 0] memory blocks, sum=3 test_functools leaked [0, 3, 1] memory blocks, sum=4 test_multiprocessing_forkserver leaked [-1, 0, 2] memory blocks, sum=1 Command line was: ['./python', '-m', 'test.regrtest', '-uall', '-R', '3:3:/home/psf-users/antoine/refleaks/reflogDk_bm5', '--timeout', '7200']

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bpo-34849: Don't log wating for selector.select in asyncio loop iteration (GH-9641)
by Miss Islington (bot) 30 Sep '18

30 Sep '18

https://github.com/python/cpython/commit/d5bd036138881bb90a803397d992870a46… commit: d5bd036138881bb90a803397d992870a46fbdc2d branch: master author: Andrew Svetlov <andrew.svetlov(a)gmail.com> committer: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> date: 2018-09-29T22:28:40-07:00 summary: bpo-34849: Don't log wating for selector.select in asyncio loop iteration (GH-9641) The waiting is pretty normal for any asyncio program, logging its time just adds a noise to logs without any useful information provided. https://bugs.python.org/issue34849 files: A Misc/NEWS.d/next/Library/2018-09-30-08-08-14.bpo-34849.NXK9Ff.rst M Lib/asyncio/base_events.py M Lib/test/test_asyncio/test_base_events.py diff --git a/Lib/asyncio/base_events.py b/Lib/asyncio/base_events.py index 492e377d09e0..780a06192dcf 100644 --- a/Lib/asyncio/base_events.py +++ b/Lib/asyncio/base_events.py @@ -1719,28 +1719,7 @@ def _run_once(self): when = self._scheduled[0]._when timeout = min(max(0, when - self.time()), MAXIMUM_SELECT_TIMEOUT) - if self._debug and timeout != 0: - t0 = self.time() - event_list = self._selector.select(timeout) - dt = self.time() - t0 - if dt >= 1.0: - level = logging.INFO - else: - level = logging.DEBUG - nevent = len(event_list) - if timeout is None: - logger.log(level, 'poll took %.3f ms: %s events', - dt * 1e3, nevent) - elif nevent: - logger.log(level, - 'poll %.3f ms took %.3f ms: %s events', - timeout * 1e3, dt * 1e3, nevent) - elif dt >= 1.0: - logger.log(level, - 'poll %.3f ms took %.3f ms: timeout', - timeout * 1e3, dt * 1e3) - else: - event_list = self._selector.select(timeout) + event_list = self._selector.select(timeout) self._process_events(event_list) # Handle 'later' callbacks that are ready. diff --git a/Lib/test/test_asyncio/test_base_events.py b/Lib/test/test_asyncio/test_base_events.py index 95f4f6b82d53..42244699372a 100644 --- a/Lib/test/test_asyncio/test_base_events.py +++ b/Lib/test/test_asyncio/test_base_events.py @@ -371,31 +371,6 @@ def test_set_debug(self): self.loop.set_debug(False) self.assertFalse(self.loop.get_debug()) - @mock.patch('asyncio.base_events.logger') - def test__run_once_logging(self, m_logger): - def slow_select(timeout): - # Sleep a bit longer than a second to avoid timer resolution - # issues. - time.sleep(1.1) - return [] - - # logging needs debug flag - self.loop.set_debug(True) - - # Log to INFO level if timeout > 1.0 sec. - self.loop._selector.select = slow_select - self.loop._process_events = mock.Mock() - self.loop._run_once() - self.assertEqual(logging.INFO, m_logger.log.call_args[0][0]) - - def fast_select(timeout): - time.sleep(0.001) - return [] - - self.loop._selector.select = fast_select - self.loop._run_once() - self.assertEqual(logging.DEBUG, m_logger.log.call_args[0][0]) - def test__run_once_schedule_handle(self): handle = None processed = False diff --git a/Misc/NEWS.d/next/Library/2018-09-30-08-08-14.bpo-34849.NXK9Ff.rst b/Misc/NEWS.d/next/Library/2018-09-30-08-08-14.bpo-34849.NXK9Ff.rst new file mode 100644 index 000000000000..6f5321ce4cf7 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2018-09-30-08-08-14.bpo-34849.NXK9Ff.rst @@ -0,0 +1,3 @@ +Don't log wating for ``selector.select`` in asyncio loop iteration. The +waiting is pretty normal for any asyncio program, logging its time just adds +a noise to logs without any useful information provided.

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Speed-up math.dist() by 30% (GH-9628)
by Raymond Hettinger 29 Sep '18

29 Sep '18

https://github.com/python/cpython/commit/df8101517aa1c917fdf8aeb466e480c26d… commit: df8101517aa1c917fdf8aeb466e480c26d4e878c branch: master author: Raymond Hettinger <rhettinger(a)users.noreply.github.com> committer: GitHub <noreply(a)github.com> date: 2018-09-29T14:30:38-07:00 summary: Speed-up math.dist() by 30% (GH-9628) files: M Modules/clinic/mathmodule.c.h M Modules/mathmodule.c diff --git a/Modules/clinic/mathmodule.c.h b/Modules/clinic/mathmodule.c.h index c4d278634101..b40a227dbea5 100644 --- a/Modules/clinic/mathmodule.c.h +++ b/Modules/clinic/mathmodule.c.h @@ -294,8 +294,9 @@ math_dist(PyObject *module, PyObject *const *args, Py_ssize_t nargs) PyObject *p; PyObject *q; - if (!_PyArg_ParseStack(args, nargs, "O!O!:dist", - &PyTuple_Type, &p, &PyTuple_Type, &q)) { + if (!_PyArg_UnpackStack(args, nargs, "dist", + 2, 2, + &p, &q)) { goto exit; } return_value = math_dist_impl(module, p, q); @@ -522,4 +523,4 @@ math_isclose(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject exit: return return_value; } -/*[clinic end generated code: output=d936137c1189b89b input=a9049054013a1b77]*/ +/*[clinic end generated code: output=239c51a5acefbafb input=a9049054013a1b77]*/ diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c index e872e473f5fe..e956314e27fc 100644 --- a/Modules/mathmodule.c +++ b/Modules/mathmodule.c @@ -2101,8 +2101,8 @@ vector_norm(Py_ssize_t n, double *vec, double max, int found_nan) /*[clinic input] math.dist - p: object(subclass_of='&PyTuple_Type') - q: object(subclass_of='&PyTuple_Type') + p: object + q: object / Return the Euclidean distance between two points p and q. @@ -2116,7 +2116,7 @@ Roughly equivalent to: static PyObject * math_dist_impl(PyObject *module, PyObject *p, PyObject *q) -/*[clinic end generated code: output=56bd9538d06bbcfe input=937122eaa5f19272]*/ +/*[clinic end generated code: output=56bd9538d06bbcfe input=8c83c07c7a524664]*/ { PyObject *item; double max = 0.0; @@ -2126,6 +2126,11 @@ math_dist_impl(PyObject *module, PyObject *p, PyObject *q) double diffs_on_stack[NUM_STACK_ELEMS]; double *diffs = diffs_on_stack; + if (!PyTuple_Check(p) || !PyTuple_Check(q)) { + PyErr_SetString(PyExc_TypeError, "dist argument must be a tuple"); + return NULL; + } + m = PyTuple_GET_SIZE(p); n = PyTuple_GET_SIZE(q); if (m != n) {

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[2.7] bpo-13407: Mention that bz2/tarfile doesn't support multi-stream bzip2 files (GH-8428)
by Brian Curtin 29 Sep '18

29 Sep '18

https://github.com/python/cpython/commit/8d3b0f49021e6cd25030a1eb979218cfce… commit: 8d3b0f49021e6cd25030a1eb979218cfceb44061 branch: 2.7 author: Andrés Delfino <adelfino(a)gmail.com> committer: Brian Curtin <brian(a)python.org> date: 2018-09-29T10:57:35-06:00 summary: [2.7] bpo-13407: Mention that bz2/tarfile doesn't support multi-stream bzip2 files (GH-8428) * bpo-13407: Mention that tarfile doesn't support multistream bzip2 files * Add mention to bz2 module also files: A Misc/NEWS.d/next/Documentation/2018-09-29-13-40-06.bpo-13407.BRI-_D.rst M Doc/library/bz2.rst M Doc/library/tarfile.rst diff --git a/Doc/library/bz2.rst b/Doc/library/bz2.rst index e764f3939544..478a8423f3ff 100644 --- a/Doc/library/bz2.rst +++ b/Doc/library/bz2.rst @@ -35,6 +35,10 @@ Here is a summary of the features offered by the bz2 module: * Thread safety uses individual locking mechanism. +.. note:: + Handling of multi-stream bzip2 files is not supported. Modules such as + `bz2file <https://github.com/nvawda/bz2file>`_ let you overcome this. + (De)compression of files ------------------------ diff --git a/Doc/library/tarfile.rst b/Doc/library/tarfile.rst index c819bf500a19..5789e5efd5a9 100644 --- a/Doc/library/tarfile.rst +++ b/Doc/library/tarfile.rst @@ -37,6 +37,10 @@ Some facts and figures: character devices and block devices and is able to acquire and restore file information like timestamp, access permissions and owner. +.. note:: + Handling of multi-stream bzip2 files is not supported. Modules such as + `bz2file <https://github.com/nvawda/bz2file>`_ let you overcome this. + .. function:: open(name=None, mode='r', fileobj=None, bufsize=10240, \*\*kwargs) diff --git a/Misc/NEWS.d/next/Documentation/2018-09-29-13-40-06.bpo-13407.BRI-_D.rst b/Misc/NEWS.d/next/Documentation/2018-09-29-13-40-06.bpo-13407.BRI-_D.rst new file mode 100644 index 000000000000..e1766932c86c --- /dev/null +++ b/Misc/NEWS.d/next/Documentation/2018-09-29-13-40-06.bpo-13407.BRI-_D.rst @@ -0,0 +1,2 @@ +Add a note to :mod:`bz2` and :mod:`tarfile` stating that handling of +multi-stream bzip2 files is not supported.

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bpo-27351: Fix ConfigParser.read() documentation and docstring (GH-8123)
by Brian Curtin 29 Sep '18

29 Sep '18

https://github.com/python/cpython/commit/3cd5e8e83c9785d9f505138903c7a50dc9… commit: 3cd5e8e83c9785d9f505138903c7a50dc964101e branch: 3.6 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: Brian Curtin <brian(a)python.org> date: 2018-09-29T10:39:39-06:00 summary: bpo-27351: Fix ConfigParser.read() documentation and docstring (GH-8123) Switch "list" with "iterable" to match with the implementation. (cherry picked from commit e45473e3ca31e5b78dc85cab575f5bb60d5b7f8f) Co-authored-by: Zackery Spytz <zspytz(a)gmail.com> files: M Doc/library/configparser.rst M Lib/configparser.py diff --git a/Doc/library/configparser.rst b/Doc/library/configparser.rst index ba107274f7be..4abc6aa75606 100644 --- a/Doc/library/configparser.rst +++ b/Doc/library/configparser.rst @@ -982,15 +982,16 @@ ConfigParser Objects .. method:: read(filenames, encoding=None) - Attempt to read and parse a list of filenames, returning a list of + Attempt to read and parse an iterable of filenames, returning a list of filenames which were successfully parsed. If *filenames* is a string or :term:`path-like object`, it is treated as a single filename. If a file named in *filenames* cannot be opened, that - file will be ignored. This is designed so that you can specify a list of - potential configuration file locations (for example, the current - directory, the user's home directory, and some system-wide directory), - and all existing configuration files in the list will be read. + file will be ignored. This is designed so that you can specify an + iterable of potential configuration file locations (for example, the + current directory, the user's home directory, and some system-wide + directory), and all existing configuration files in the iterable will be + read. If none of the named files exist, the :class:`ConfigParser` instance will contain an empty dataset. An application which requires diff --git a/Lib/configparser.py b/Lib/configparser.py index 230ab2b017ea..0e529e9693ab 100644 --- a/Lib/configparser.py +++ b/Lib/configparser.py @@ -80,7 +80,7 @@ Return list of configuration options for the named section. read(filenames, encoding=None) - Read and parse the list of named configuration files, given by + Read and parse the iterable of named configuration files, given by name. A single filename is also allowed. Non-existing files are ignored. Return list of successfully read files. @@ -677,13 +677,13 @@ def options(self, section): return list(opts.keys()) def read(self, filenames, encoding=None): - """Read and parse a filename or a list of filenames. + """Read and parse a filename or an iterable of filenames. Files that cannot be opened are silently ignored; this is - designed so that you can specify a list of potential + designed so that you can specify an iterable of potential configuration file locations (e.g. current directory, user's home directory, systemwide directory), and all existing - configuration files in the list will be read. A single + configuration files in the iterable will be read. A single filename may also be given. Return list of successfully read files.

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